According to the graph below, how many years from now will the cost of tuition at u boxer be greatest? 0 years 2 years 5 years and 7 years.

The general form of the quetion of a circle is ax^2+by^2+cx+dy+e=0 where a=b=0 if the circle has a radius of three units and the center lies on the y axis which set of values of a, b, c, d, and e might correspond to the circle